diff --git a/app/views/sites/_form.haml b/app/views/sites/_form.haml
index b8e3ec41..0afb3ada 100644
--- a/app/views/sites/_form.haml
+++ b/app/views/sites/_form.haml
@@ -43,7 +43,8 @@
           %h3
             = f.radio_button :design_id, design.id,
               checked: design.id == site.design_id,
-              disabled: design.disabled
+              disabled: design.disabled,
+              required: true
             = f.label "design_id_#{design.id}", design.name
           = sanitize_markdown design.description,
             tags: %w[p a strong em]
@@ -65,7 +66,8 @@
         .col
           %h3
             = f.radio_button :licencia_id, licencia.id,
-              checked: licencia.id == site.licencia_id
+              checked: licencia.id == site.licencia_id,
+              required: true
             = f.label "licencia_id_#{licencia.id}" do
               = image_tag licencia.icons, alt: licencia.name
               = licencia.name